3451742

Information

• Patent Grant
• 3451742

• References
• Source

• Patent Number

  3,451,742

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1969
  55 years ago

• CPC

  • H04N3/127 - using liquid crystals
  • G02F1/172 - based on a suspension of orientable dipolar particles
  • H01J29/12 - acting as light valves by shutter operation

• US Classifications

  • 359 - Optical: systems and elements
  • 348 - Television